164 pages of time loops and paradoxes. From Doctor Who to HG Wells via Back To The Future we examine the way time travel has become the most mindbending aspect of science fiction with comments from the experts throughout.

Including a massive celebration of the Eleventh Doctor’s era on Doctor, interviews with star and creator of Continuum, a Top 100 Time Travel Tales of all time, a look at some of the most unusual ways to time travel ever and some of the most popular destinations for the seasoned time tourist.

All this, plus why we keep killing Hitler, again, and again, and again, and again…